Karen Lynn Gorney was born in Beverly Hills; her dad, Jay Gorney, is the famous songwriter who penned "Brother, Can You Spare a Dime?" But Karen was no loose change and took after her mom, an actress and dancer. After enrolling in the High School of Performing Arts in New York and earning her BFA in Acting at Carnegie-Mellon in Pittsburgh, it was time to make those melons professional, and she got a gig on the popular soap All My Children in 1970. Then, along came Saturday Night Fever (1977), which changed everything. As the fine young thing on John Travolta's boogie arm, she became the primordial disco queen and showed off some killer gams. But it was an earlier screen performance that exposed all of her dangerous curves. In The Magic Garden of Stanley Sweetheart (1970), Karen took on the sexual revolution with all her weapons bared, from her cute little perky breasts to a patch of flower-child bush. Karen has three names, all right, one for each body part that she gleefully displays. That's a magic number.